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today This miniature species grows under three centimeters long in shallow Rio Cajari pools.
today A November 2026 study of a Brazilian Aratasaurus fossil reveals the oldest-known dinosaur red blood cells and preserved heme proteins
duolingo A friendly chess match against a Duolingo character on Chess.com
BETA
marcus Scale your shop to discover how Singles' Day became the world's biggest shopping event.
Quiz
Pour s'orienter au milieu de la mécanique complexe d'une harpe à pédales et de ses 47 cordes, les harpistes s'appuient sur un code couleur universel. Quelles notes précises sont colorées pour servir de repères visuels sur l'instrument ?
Fun Fact
Parthenocarpic figs: In this botanical secret agent mission, these figs bypass the wasp entirely, growing sweet fruit solo without needing any insect partner's help!
Glossary
marina abramović (noun)
A legendary pioneer of performance art who used her own body as a medium. Her teaching inspired Chiharu Shiota to make art physical and emotional.
A legendary pioneer of performance art who used her own body as a medium. Her teaching inspired Chiharu Shiota to make art physical and emotional.
Achievement
Project completed!
I am a Master of Down the rabbit hole of Lewis Carroll's original Alice
kingzo Love by Musiq Soulchild
Kenny Lattimore passed on the soul track, But Musiq sang the love and never looked back.
maryluz Every November first, Tonacatepeque hosts this revived century-old celebration eighteen kilometers northeast of San Salvador using handmade clay masks.
ivyqueen A bedtime story inspired the fantasy novel The Lightning Thief.
BETA
dani_10 Operate the pulley system to discover how simple machines lift heavy loads.
Quiz
¿Qué significa el nombre del fandom oficial del grupo de K-pop ASTRO, 'AROHA', en el idioma maorí de Nueva Zelanda?
Gossip
Godzilla Minus Zero just stomped the box office with a historic $31M opening! Which iconic movie monster is your favorite?
Fun Fact
La medusa immortale: La Turritopsis dohrnii può resettare il suo ciclo vitale quando è vecchia o ferita, tornando allo stato di polipo e ricominciando da capo.
Glossary
gato (substantivo)
Pequeno mamífero doméstico conhecido por sua agilidade, ronronares e temperamento independente. Eles são ótimos companheiros de estimação. Sabia que o miau deles serve apenas para falar com humanos?
Pequeno mamífero doméstico conhecido por sua agilidade, ronronares e temperamento independente. Eles são ótimos companheiros de estimação. Sabia que o miau deles serve apenas para falar com humanos?
Achievement
Project completed!
I am a Master of The raw brick and bold brushstrokes of Pinacoteca de São Paulo
today Tokyo Night and Light
Thirteen thousand square meters shining in the night! (Shine so bright!) / Shinjuku's record-breaking wall of digital light! (Oh yeah!)
today Microscopic canals in Aratasaurus bones contain iron and nitrogen from ancient hemoglobin
sparta The ten greatest movies of all time, ranked by global film experts, include legendary masterpieces that lost money in theaters.
BETA
coach Sort athlete recovery steps to master the mental playbook for starting over after a setback.
Quiz
Who is the volcanic sister and chief mythological rival of the Hawaiian sea goddess Namakaokahai?